Chunibyo and Spyce (A Chunibyo & Release the Spyce Story) #4

Rikka and Yuuta have been living a peaceful life with thier newborn daughter, but peace doesn't last forever. When Ruby is almost killed Rikka tries to find her assassin only to be found by a group of spies who are ready to spyce up her life. Rikka Takanashi, Momochi Minamoto, and the rest of Tsukikage are out to find Ruby's assassin, and put an end to the bloodshed